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Finding the Fourth Proportional to 65,830.80, 98,659.80 and 58,400.40

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Solution

The fourth proportional to 65,830.80, 98,659.80 and 58,400.40 is: 87,523.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,830.80 : 98,659.80 = 58,400.40 : x
  2. Step 2: Convert to fraction form
    65,830.80/98,659.80 = 58,400.40/x
  3. Step 3: Cross multiply
    65,830.80x = 98,659.80 × 58,400.40
  4. Step 4: Simplify right side
    65,830.80x = 5,761,771,783.92
  5. Step 5: Solve for x
    x = 5,761,771,783.92/65,830.80
  6. Step 6: Final answer
    x = 87,523.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.